A particle mass 1 kg is moving along a straight line `y=x+4`. Both x and y are in metres. Velocity of the particle is `2m//s`. Find the magnitude of angular momentum of the particle about origin.

Explanation

To find the magnitude of angular momentum of a particle about the origin, we can follow these steps:

### Step 1: Understand the motion of the particle
The particle is moving along the line given by the equation \( y = x + 4 \). This means that for any position \( x \), the corresponding \( y \) can be found using this equation.

### Step 2: Identify the mass and velocity of the particle
The mass \( m \) of the particle is given as \( 1 \, \text{kg} \) and its velocity \( v \) is \( 2 \, \text{m/s} \).

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